Question

If 7x + 11 = 39, then 7x = 28.
Name property

Answer 1

Answer: Subtraction Property of Equality

Explanation: The Subtraction Property of Equality tells us that

we can subtract the same quantity, or equal quantities,

from both sides of an equation.

To get from the statement 7x + 11 = 39 to 7x = 28,

we subtract 11 from both sides to get 7x = 28.